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How United States ranks worldwide on dormant space, the transfer market, routing security and address density.
PeeringDB-registered presence.
APNIC-measured end-user deployment.
Clean prefixes (valid RPKI + IRR, no mismatch).
Cumulative IPv4, IPv6, and ASN allocations to United States over time.
The largest autonomous systems registered to United States by IPv4 footprint.
| AS | Holder | IPv4 | Prefixes |
|---|---|---|---|
| AS749US | DNIC-AS-00749 - United States Department of Defense (DoD) | 227.5M | 3,134 |
| AS16509US | AMAZON-02 - Amazon.com, Inc. | 218.2M | 25,525 |
| AS7018US | ATT-INTERNET4 - AT&T Enterprises, LLC | 117.3M | 642 |
| AS8075US | MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation | 81.7M | 1,309 |
| AS721US | DNIC-ASBLK-00721-00726 - United States Department of Defense (DoD) |
United States against its land-border neighbours on IPv4, IPv6, AS numbers and per-capita density.
Share of announced address space covered by valid Route Origin Authorizations.
32,245 autonomous systems registered to United States. Click an AS for detail.
| 73M |
| 232 |
| AS7922US | COMCAST-7922 - Comcast Cable Communications, LLC | 68.3M | 437 |
| AS396982US | GOOGLE-CLOUD-PLATFORM - Google LLC | 51.6M | 3,898 |
| AS714US | APPLE-ENGINEERING - Apple Inc. | 44.8M | 2,000 |
| AS701US | UUNET - Verizon Business | 43.6M | 991 |
| AS174US | COGENT-174 - Cogent Communications, LLC | 37.6M | 4,357 |
| 768 |
| — |
| 2 |
| AS399544US | PEOPLENTECH-LLC - PeopleNTech, LLC | 768 | 51 | 54 |
| AS395760US | MAPCOEXPRESS-DC-1 - MAPCO Express, Inc. | 768 | — | 3 |
| AS54030US | SUMMIT-SOL-ASN - Summit Solutions, LLC | 768 | — | 3 |
| AS33743US | HVW-ALB1 - Hudson Valley Wireless | 768 | — | 3 |
| AS394795US | COMM-SOLUTIONS - Communication Solutions, LLC | 768 | — | 3 |
| AS11806US | LEEPFROG - Leepfrog Technologies, Inc. | 768 | — | 3 |
| AS25683US | FFB-NET-ASN - First Financial Bank | 768 | — | 4 |
| AS36345US | PNMABQ-1 - Public Service Company of New Mexico | 768 | 65.5K | 4 |
| AS399502US | VALUEHOSTED-US - THE VALUE HOSTED LLC | 768 | 2 | 5 |
| AS36824US | ADTAQ - Adtaq Internet, LLC | 768 | 1 | 4 |
| AS11386US | HEALTH-AND-HOSPITAL-CORPORATION-OF-MARION-COUNTY - HEALTH AND HOSPITAL CORPORATION OF MARION COUNTY | 768 | — | 3 |
| AS397085US | SIGUS - Signal Restoration Services | 768 | 256 | 4 |
| AS23004US | VIEWTRADE - VIEWTRADE SECURITIES | 768 | — | 3 |
| AS394584US | MX-1 - MX Technologies Inc. | 768 | 1 | 4 |
| AS14611US | HARPERCOLLINSPUBLISHERS - HARPER COLLINS PUBLISHERS INC. | 768 | — | 3 |
| AS395891US | CCS-DN1-MULTIHOME - Century Communities, Inc. | 768 | — | 3 |
| AS395206US | ROTARYCORP-ASN - Rotary Corporation | 768 | — | 2 |
| AS395227US | CLAYTON - CMH Services Inc. | 768 | — | 3 |
| AS26791US | BADC-CLOUD - Synopsys Inc. | 768 | — | 2 |
| AS206226US | LITTLEORBIT Little Orbit Inc. | 768 | 32 | 5 |
| AS27330US | EQUINIX-EC-AT - Equinix, Inc. | 768 | 1 | 4 |
| AS205419US | pl-lionbridge Lionbridge Technologies, Inc. | 768 | — | 3 |
| AS397174US | APPLIED-PREDICTIVE-TECHNOLOGIES - Applied Predictive Technologies, Inc. | 768 | — | 3 |
| AS393560US | AKAMAI-TEST - Akamai Technologies, Inc. | 768 | 2 | 4 |
| AS20235US | MYLANP-AS - Mylan Pharmaceuticals Inc. | 768 | — | 2 |
| AS401661US | EMBNEX-AS - EMBNEX, LLC | 768 | 65.5K | 4 |
| AS401506US | TOGETHER-COMPUTER - Together Computer, Inc. | 768 | — | 3 |
| AS25802US | WBD-AS25802 - Home Box Office | 768 | — | 3 |
| AS3577US | AS3577 - Vestas American Wind Technology | 768 | — | 3 |
| AS25936US | MJHS - MJHS Health System | 768 | — | 2 |
| AS55164US | PLUS-1 - Plus Analytics, LLC | 768 | — | 3 |
| AS46926US | 555-WEST-HASTINGS-STREET - Payment Processing Inc. | 768 | — | 3 |
| AS401610US | TRAFIX-LLC - TRAFiX LLC | 768 | — | 3 |
| AS54116US | STROM - Strom Holdings LLC | 768 | 1 | 5 |
| AS32951US | IPL-INTERNET1 - IPL | 768 | — | 3 |
| AS397933US | DC2-WAN - Clark Associates, Inc. | 768 | 1 | 4 |
| AS394858US | UNIVERSITY-OF-NEW-HAVEN - University of New Haven | 768 | 1 | 3 |
| AS14780US | YAHOO - Yahoo Holdings Inc. | 768 | 1 | 4 |
| AS53268US | EIS-SFO-AS - EIS Group, INC | 768 | — | 3 |
| AS12074US | ITSC - County of Saginaw | 768 | — | 3 |
| AS401911US | MTRX - MAETRIX COMMUNICATIONS, LLC. | 768 | 4.1K | 3 |
| AS22450US | XN-NC-ASN01 - Xobee Networks Inc. | 768 | — | 3 |
| AS22602US | EXPERIENT-INC - Experient Inc. | 768 | — | 2 |
| AS396406US | MARYVILLE-UNIVERSITY-STL - Maryville University of St Louis | 768 | — | 3 |
| AS397677US | SIXPACKETS - SixPackets | 768 | — | 3 |
| AS7382US | MIENERGY - MiEnergy Cooperative | 768 | — | 2 |